# -*-codeing = utf-8 -*-
# @Tine:2024/9/19 
# @Author:计科201121尚益帆
# File：3.5.py
# @Software:PyCharm
def print1():
    print("-"*20)
print1()
a=int(input("请输入整数n："))
def print2(a):
    print("-"*a)
print2(a)
